[Findit] Add local git parsers.

appengine/findit/common/change_log.py

Index: appengine/findit/common/change_log.py
diff --git a/appengine/findit/common/change_log.py b/appengine/findit/common/change_log.py
index c56c8ec6e20267b6a147e6fc598f6a70cebfe938..17b88c48465acda877c370cbfa07799831652f49 100644
--- a/appengine/findit/common/change_log.py
+++ b/appengine/findit/common/change_log.py
@@ -25,9 +25,10 @@ class FileChangeInfo(object):
 class ChangeLog(object):
   """Represents the change log of a revision."""
 
-  def __init__(self, author_name, author_email, author_time, committer_name,
-               committer_email, committer_time, revision, commit_position,
-               message, touched_files, commit_url, code_review_url=None,
+  def __init__(self, author_name=None, author_email=None, author_time=None,
+               committer_name=None, committer_email=None, committer_time=None,
+               revision=None, commit_position=None, message=None,
+               touched_files=None, commit_url=None, code_review_url=None,
                reverted_revision=None):
     self.author_name = author_name
     self.author_email = author_email